/**
* Attempts to read from the input channel in the stored `ReadIntent`.
*
* @return mixed
*/
protected function attemptRead()
{
if ($this->isReading()) {
$data = $this->read($this->readIntent->getChannel());
if ($data) {
$this->readIntent = null;
}
return $data;
}
}
/**
* Handles the generator response.
*
* @param OutputIntent|ReadIntent|null $data
*
* @return boolean
*
* @throws InvalidBufferException
*/
private function handleResponse($data)
{
if ($data instanceof OutputIntent) {
try {
$this->write($data->getChannel(), $data->getContent());
} catch (InvalidBufferException $e) {
$this->invalidate();
}
}
if ($data instanceof ReadIntent) {
$this->readIntent = $data;
} elseif ($data === null) {
$this->invalidate();
return null;
}
return true;
}